Heart rate variability in dorper sheep in the fetal and neonatal periods until 120 days of age: Use of the technique in the field

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Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUNIMAR-
Autor(es): dc.contributorAgricultural Defense Office of Bauru-EDA Bauru-
Autor(es): dc.creatorCruz-Aleixo, Amanda Sarita [UNESP]-
Autor(es): dc.creatorDe CASTRO FERREIRA LIMA, Mayra [UNESP]-
Autor(es): dc.creatorHOLANDA DE ALBUQUERQUE, Ana Luísa [UNESP]-
Autor(es): dc.creatorTortorelli Teixeira, Raphael [UNESP]-
Autor(es): dc.creatorALVES DE PAULA, Renata [UNESP]-
Autor(es): dc.creatorGrandi, Marina Cecília-
Autor(es): dc.creatorLaurenti Ferreira, Danilo Otávio-
Autor(es): dc.creatorHarumi Tsunemi, Miriam [UNESP]-
Autor(es): dc.creatorBiagio Chiacchio, Simone [UNESP]-
Autor(es): dc.creatorGomes Lourenço, Maria Lucia [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:49:30Z-
Data de disponibilização: dc.date.available2022-02-22T00:49:30Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1292/jvms.20-0292-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/207200-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/207200-
Descrição: dc.descriptionThe evaluation of the autonomic cardiac functions may be performed through the analysis of the heart rate variability. Heart rate variability is defined as the fluctuations in the heart rhythm or rate, and represents a useful tool in the evaluation of the autonomic nervous system through the sympathetic and parasympathetic components, as well as its balance and its reflexes on the cardiorespiratory control system. Fetal electrocardiography provides important information regarding the well-being of the fetus since, in human fetuses, there are changes in the behavior of the fetal heart rate during the second and third trimesters of pregnancy due to an increase in parasympathetic activity. Therefore, considering the importance of evaluating fetal viability, this study aims at evaluating the behavior of fetal heart rate and heart rate variability in Dorper sheep, as well as the activity of the autonomic nervous system during fetal life and in newborn lambs. The species is often used in experimental studies and autonomic nervous system activity is a prognostic index, therefore, the diagnosis of modifications in the sympathovagal balance may represent an early index for fetal viability and well-being in lambs. The analyses were performed in 10 Dorper sheep during pregnancy and in 10 lambs after birth until 120 days of age. There was a decrease in the fetal heart rate and heart rate variability indexes during the fifth month of pregnancy, but without statistical significance for the period evaluated. The heart rate of the lambs decreased gradually until they were 21 days old. The indexes SDNN (standard deviation of RR intervals) and RMSSD (square root of the mean of successive differences between adjacent RR intervals) diverged according to age, being high at day 60. Fetal viability is relevant in sheep fetuses to avoid losses during pregnancy and risks to the health of the mother. In the species, there seems to be a predominance of parasympathetic activity starting from the 21st day of age. Heart rate variability may be employed as a tool in the evaluation of the fetus and development of lambs, since changes in its behavior may represent an adverse effect to fetal and neonatal health.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionDepartment of Veterinary Clinic São Paulo State University (Unesp) School of Veterinary Medicine and Animal Science-
Descrição: dc.descriptionDiplomate in Veterinary Medicine University of Marília UNIMAR-
Descrição: dc.descriptionSecretariat of Agriculture and Supply of the State of São Paulo-SAA/SP Coordination of Agricultural Defense− CDA Agricultural Defense Office of Bauru-EDA Bauru-
Descrição: dc.descriptionBiostatistics Department São Paulo State University (Unesp) Institute of Biosciences-
Descrição: dc.descriptionDepartment of Veterinary Clinic São Paulo State University (Unesp) School of Veterinary Medicine and Animal Science-
Descrição: dc.descriptionBiostatistics Department São Paulo State University (Unesp) Institute of Biosciences-
Descrição: dc.descriptionFAPESP: 2017/15121-9-
Formato: dc.format17-27-
Idioma: dc.languageen-
Relação: dc.relationJournal of Veterinary Medical Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAutonomic nervous system-
Palavras-chave: dc.subjectFetus-
Palavras-chave: dc.subjectHeart rate-
Palavras-chave: dc.subjectPregnancy sheep-
Título: dc.titleHeart rate variability in dorper sheep in the fetal and neonatal periods until 120 days of age: Use of the technique in the field-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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